Al Davis REFS Keynote: "Requirements for Services: Does it Make Sense?". 451-454 2007 conf/compsac/2007-2 COMPSAC (2) https://doi.org/10.1109/COMPSAC.2007.177 https://doi.ieeecomputersociety.org/10.1109/COMPSAC.2007.177 db/conf/compsac/compsac2007-2.html#Davis07